1 /*
   2  * Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright (c) 2015-2018, Azul Systems, Inc. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #include "precompiled.hpp"
  27 #include "c1/c1_InstructionPrinter.hpp"
  28 #include "c1/c1_LIR.hpp"
  29 #include "c1/c1_LIRAssembler.hpp"
  30 #include "c1/c1_ValueStack.hpp"
  31 #include "ci/ciInstance.hpp"
  32 #include "runtime/sharedRuntime.hpp"
  33 
  34 Register LIR_OprDesc::as_register() const {
  35   return FrameMap::cpu_rnr2reg(cpu_regnr());
  36 }
  37 
  38 Register LIR_OprDesc::as_register_lo() const {
  39   return FrameMap::cpu_rnr2reg(cpu_regnrLo());
  40 }
  41 
  42 Register LIR_OprDesc::as_register_hi() const {
  43   return FrameMap::cpu_rnr2reg(cpu_regnrHi());
  44 }
  45 
  46 LIR_Opr LIR_OprFact::illegalOpr = LIR_OprFact::illegal();
  47 
  48 LIR_Opr LIR_OprFact::value_type(ValueType* type) {
  49   ValueTag tag = type->tag();
  50   switch (tag) {
  51   case metaDataTag : {
  52     ClassConstant* c = type->as_ClassConstant();
  53     if (c != NULL && !c->value()->is_loaded()) {
  54       return LIR_OprFact::metadataConst(NULL);
  55     } else if (c != NULL) {
  56       return LIR_OprFact::metadataConst(c->value()->constant_encoding());
  57     } else {
  58       MethodConstant* m = type->as_MethodConstant();
  59       assert (m != NULL, "not a class or a method?");
  60       return LIR_OprFact::metadataConst(m->value()->constant_encoding());
  61     }
  62   }
  63   case objectTag : {
  64       return LIR_OprFact::oopConst(type->as_ObjectType()->encoding());
  65     }
  66   case addressTag: return LIR_OprFact::addressConst(type->as_AddressConstant()->value());
  67   case intTag    : return LIR_OprFact::intConst(type->as_IntConstant()->value());
  68   case floatTag  : return LIR_OprFact::floatConst(type->as_FloatConstant()->value());
  69   case longTag   : return LIR_OprFact::longConst(type->as_LongConstant()->value());
  70   case doubleTag : return LIR_OprFact::doubleConst(type->as_DoubleConstant()->value());
  71   default: ShouldNotReachHere(); return LIR_OprFact::intConst(-1);
  72   }
  73 }
  74 
  75 
  76 LIR_Opr LIR_OprFact::dummy_value_type(ValueType* type) {
  77   switch (type->tag()) {
  78     case objectTag: return LIR_OprFact::oopConst(NULL);
  79     case addressTag:return LIR_OprFact::addressConst(0);
  80     case intTag:    return LIR_OprFact::intConst(0);
  81     case floatTag:  return LIR_OprFact::floatConst(0.0);
  82     case longTag:   return LIR_OprFact::longConst(0);
  83     case doubleTag: return LIR_OprFact::doubleConst(0.0);
  84     default:        ShouldNotReachHere(); return LIR_OprFact::intConst(-1);
  85   }
  86   return illegalOpr;
  87 }
  88 
  89 
  90 
  91 //---------------------------------------------------
  92 
  93 
  94 LIR_Address::Scale LIR_Address::scale(BasicType type) {
  95   int elem_size = type2aelembytes(type);
  96   switch (elem_size) {
  97   case 1: return LIR_Address::times_1;
  98   case 2: return LIR_Address::times_2;
  99   case 4: return LIR_Address::times_4;
 100   case 8: return LIR_Address::times_8;
 101   }
 102   ShouldNotReachHere();
 103   return LIR_Address::times_1;
 104 }
 105 
 106 //---------------------------------------------------
 107 
 108 char LIR_OprDesc::type_char(BasicType t) {
 109   switch (t) {
 110     case T_ARRAY:
 111       t = T_OBJECT;
 112     case T_BOOLEAN:
 113     case T_CHAR:
 114     case T_FLOAT:
 115     case T_DOUBLE:
 116     case T_BYTE:
 117     case T_SHORT:
 118     case T_INT:
 119     case T_LONG:
 120     case T_OBJECT:
 121     case T_ADDRESS:
 122     case T_VOID:
 123       return ::type2char(t);
 124     case T_METADATA:
 125       return 'M';
 126     case T_ILLEGAL:
 127       return '?';
 128 
 129     default:
 130       ShouldNotReachHere();
 131       return '?';
 132   }
 133 }
 134 
 135 #ifndef PRODUCT
 136 void LIR_OprDesc::validate_type() const {
 137 
 138 #ifdef ASSERT
 139   if (!is_pointer() && !is_illegal()) {
 140     OprKind kindfield = kind_field(); // Factored out because of compiler bug, see 8002160
 141     switch (as_BasicType(type_field())) {
 142     case T_LONG:
 143       assert((kindfield == cpu_register || kindfield == stack_value) &&
 144              size_field() == double_size, "must match");
 145       break;
 146     case T_FLOAT:
 147       // FP return values can be also in CPU registers on ARM and PPC32 (softfp ABI)
 148       assert((kindfield == fpu_register || kindfield == stack_value
 149              AARCH32_ONLY(|| kindfield == cpu_register)
 150              ARM_ONLY(|| kindfield == cpu_register)
 151              PPC32_ONLY(|| kindfield == cpu_register) ) &&
 152              size_field() == single_size, "must match");
 153       break;
 154     case T_DOUBLE:
 155       // FP return values can be also in CPU registers on ARM and PPC32 (softfp ABI)
 156       assert((kindfield == fpu_register || kindfield == stack_value
 157              ARM_ONLY(|| kindfield == cpu_register)
 158              PPC32_ONLY(|| kindfield == cpu_register) ) &&
 159              size_field() == double_size, "must match");
 160       break;
 161     case T_BOOLEAN:
 162     case T_CHAR:
 163     case T_BYTE:
 164     case T_SHORT:
 165     case T_INT:
 166     case T_ADDRESS:
 167     case T_OBJECT:
 168     case T_METADATA:
 169     case T_ARRAY:
 170       assert((kindfield == cpu_register || kindfield == stack_value) &&
 171              size_field() == single_size, "must match");
 172       break;
 173 
 174     case T_ILLEGAL:
 175       // XXX TKR also means unknown right now
 176       // assert(is_illegal(), "must match");
 177       break;
 178 
 179     default:
 180       ShouldNotReachHere();
 181     }
 182   }
 183 #endif
 184 
 185 }
 186 #endif // PRODUCT
 187 
 188 
 189 bool LIR_OprDesc::is_oop() const {
 190   if (is_pointer()) {
 191     return pointer()->is_oop_pointer();
 192   } else {
 193     OprType t= type_field();
 194     assert(t != unknown_type, "not set");
 195     return t == object_type;
 196   }
 197 }
 198 
 199 
 200 
 201 void LIR_Op2::verify() const {
 202 #ifdef ASSERT
 203   switch (code()) {
 204     case lir_cmove:
 205     case lir_xchg:
 206       break;
 207 
 208     default:
 209       assert(!result_opr()->is_register() || !result_opr()->is_oop_register(),
 210              "can't produce oops from arith");
 211   }
 212 
 213   if (TwoOperandLIRForm) {
 214 
 215 #ifdef ASSERT
 216     bool threeOperandForm = false;
 217 #ifdef S390
 218     // There are 3 operand shifts on S390 (see LIR_Assembler::shift_op()).
 219     threeOperandForm =
 220       code() == lir_shl ||
 221       ((code() == lir_shr || code() == lir_ushr) && (result_opr()->is_double_cpu() || in_opr1()->type() == T_OBJECT));
 222 #endif
 223 #endif
 224 
 225     switch (code()) {
 226     case lir_add:
 227     case lir_sub:
 228     case lir_mul:
 229     case lir_mul_strictfp:
 230     case lir_div:
 231     case lir_div_strictfp:
 232     case lir_rem:
 233     case lir_logic_and:
 234     case lir_logic_or:
 235     case lir_logic_xor:
 236     case lir_shl:
 237     case lir_shr:
 238       assert(in_opr1() == result_opr() || threeOperandForm, "opr1 and result must match");
 239       assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
 240       break;
 241 
 242     // special handling for lir_ushr because of write barriers
 243     case lir_ushr:
 244       assert(in_opr1() == result_opr() || in_opr2()->is_constant() || threeOperandForm, "opr1 and result must match or shift count is constant");
 245       assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
 246       break;
 247 
 248     default:
 249       break;
 250     }
 251   }
 252 #endif
 253 }
 254 
 255 
 256 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block)
 257   : LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
 258   , _cond(cond)
 259   , _type(type)
 260   , _label(block->label())
 261   , _block(block)
 262   , _ublock(NULL)
 263   , _stub(NULL) {
 264 }
 265 
 266 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, CodeStub* stub) :
 267   LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
 268   , _cond(cond)
 269   , _type(type)
 270   , _label(stub->entry())
 271   , _block(NULL)
 272   , _ublock(NULL)
 273   , _stub(stub) {
 274 }
 275 
 276 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* ublock)
 277   : LIR_Op(lir_cond_float_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
 278   , _cond(cond)
 279   , _type(type)
 280   , _label(block->label())
 281   , _block(block)
 282   , _ublock(ublock)
 283   , _stub(NULL)
 284 {
 285 }
 286 
 287 void LIR_OpBranch::change_block(BlockBegin* b) {
 288   assert(_block != NULL, "must have old block");
 289   assert(_block->label() == label(), "must be equal");
 290 
 291   _block = b;
 292   _label = b->label();
 293 }
 294 
 295 void LIR_OpBranch::change_ublock(BlockBegin* b) {
 296   assert(_ublock != NULL, "must have old block");
 297   _ublock = b;
 298 }
 299 
 300 void LIR_OpBranch::negate_cond() {
 301   switch (_cond) {
 302     case lir_cond_equal:        _cond = lir_cond_notEqual;     break;
 303     case lir_cond_notEqual:     _cond = lir_cond_equal;        break;
 304     case lir_cond_less:         _cond = lir_cond_greaterEqual; break;
 305     case lir_cond_lessEqual:    _cond = lir_cond_greater;      break;
 306     case lir_cond_greaterEqual: _cond = lir_cond_less;         break;
 307     case lir_cond_greater:      _cond = lir_cond_lessEqual;    break;
 308     default: ShouldNotReachHere();
 309   }
 310 }
 311 
 312 
 313 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
 314                                  LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
 315                                  bool fast_check, CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch,
 316                                  CodeStub* stub)
 317 
 318   : LIR_Op(code, result, NULL)
 319   , _object(object)
 320   , _array(LIR_OprFact::illegalOpr)
 321   , _klass(klass)
 322   , _tmp1(tmp1)
 323   , _tmp2(tmp2)
 324   , _tmp3(tmp3)
 325   , _fast_check(fast_check)
 326   , _stub(stub)
 327   , _info_for_patch(info_for_patch)
 328   , _info_for_exception(info_for_exception)
 329   , _profiled_method(NULL)
 330   , _profiled_bci(-1)
 331   , _should_profile(false)
 332 {
 333   if (code == lir_checkcast) {
 334     assert(info_for_exception != NULL, "checkcast throws exceptions");
 335   } else if (code == lir_instanceof) {
 336     assert(info_for_exception == NULL, "instanceof throws no exceptions");
 337   } else {
 338     ShouldNotReachHere();
 339   }
 340 }
 341 
 342 
 343 
 344 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception)
 345   : LIR_Op(code, LIR_OprFact::illegalOpr, NULL)
 346   , _object(object)
 347   , _array(array)
 348   , _klass(NULL)
 349   , _tmp1(tmp1)
 350   , _tmp2(tmp2)
 351   , _tmp3(tmp3)
 352   , _fast_check(false)
 353   , _stub(NULL)
 354   , _info_for_patch(NULL)
 355   , _info_for_exception(info_for_exception)
 356   , _profiled_method(NULL)
 357   , _profiled_bci(-1)
 358   , _should_profile(false)
 359 {
 360   if (code == lir_store_check) {
 361     _stub = new ArrayStoreExceptionStub(object, info_for_exception);
 362     assert(info_for_exception != NULL, "store_check throws exceptions");
 363   } else {
 364     ShouldNotReachHere();
 365   }
 366 }
 367 
 368 
 369 LIR_OpArrayCopy::LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length,
 370                                  LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info)
 371   : LIR_Op(lir_arraycopy, LIR_OprFact::illegalOpr, info)
 372   , _tmp(tmp)
 373   , _src(src)
 374   , _src_pos(src_pos)
 375   , _dst(dst)
 376   , _dst_pos(dst_pos)
 377   , _flags(flags)
 378   , _expected_type(expected_type)
 379   , _length(length) {
 380   _stub = new ArrayCopyStub(this);
 381 }
 382 
 383 LIR_OpUpdateCRC32::LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res)
 384   : LIR_Op(lir_updatecrc32, res, NULL)
 385   , _crc(crc)
 386   , _val(val) {
 387 }
 388 
 389 //-------------------verify--------------------------
 390 
 391 void LIR_Op1::verify() const {
 392   switch(code()) {
 393   case lir_move:
 394     assert(in_opr()->is_valid() && result_opr()->is_valid(), "must be");
 395     break;
 396   case lir_null_check:
 397     assert(in_opr()->is_register(), "must be");
 398     break;
 399   case lir_return:
 400     assert(in_opr()->is_register() || in_opr()->is_illegal(), "must be");
 401     break;
 402   default:
 403     break;
 404   }
 405 }
 406 
 407 void LIR_OpRTCall::verify() const {
 408   assert(strcmp(Runtime1::name_for_address(addr()), "<unknown function>") != 0, "unknown function");
 409 }
 410 
 411 //-------------------visits--------------------------
 412 
 413 // complete rework of LIR instruction visitor.
 414 // The virtual call for each instruction type is replaced by a big
 415 // switch that adds the operands for each instruction
 416 
 417 void LIR_OpVisitState::visit(LIR_Op* op) {
 418   // copy information from the LIR_Op
 419   reset();
 420   set_op(op);
 421 
 422   switch (op->code()) {
 423 
 424 // LIR_Op0
 425     case lir_word_align:               // result and info always invalid
 426     case lir_backwardbranch_target:    // result and info always invalid
 427     case lir_build_frame:              // result and info always invalid
 428     case lir_fpop_raw:                 // result and info always invalid
 429     case lir_24bit_FPU:                // result and info always invalid
 430     case lir_reset_FPU:                // result and info always invalid
 431     case lir_breakpoint:               // result and info always invalid
 432     case lir_membar:                   // result and info always invalid
 433     case lir_membar_acquire:           // result and info always invalid
 434     case lir_membar_release:           // result and info always invalid
 435     case lir_membar_loadload:          // result and info always invalid
 436     case lir_membar_storestore:        // result and info always invalid
 437     case lir_membar_loadstore:         // result and info always invalid
 438     case lir_membar_storeload:         // result and info always invalid
 439     case lir_on_spin_wait:
 440     {
 441       assert(op->as_Op0() != NULL, "must be");
 442       assert(op->_info == NULL, "info not used by this instruction");
 443       assert(op->_result->is_illegal(), "not used");
 444       break;
 445     }
 446 
 447     case lir_nop:                      // may have info, result always invalid
 448     case lir_std_entry:                // may have result, info always invalid
 449     case lir_osr_entry:                // may have result, info always invalid
 450     case lir_get_thread:               // may have result, info always invalid
 451     {
 452       assert(op->as_Op0() != NULL, "must be");
 453       if (op->_info != NULL)           do_info(op->_info);
 454       if (op->_result->is_valid())     do_output(op->_result);
 455       break;
 456     }
 457 
 458 
 459 // LIR_OpLabel
 460     case lir_label:                    // result and info always invalid
 461     {
 462       assert(op->as_OpLabel() != NULL, "must be");
 463       assert(op->_info == NULL, "info not used by this instruction");
 464       assert(op->_result->is_illegal(), "not used");
 465       break;
 466     }
 467 
 468 
 469 // LIR_Op1
 470     case lir_fxch:           // input always valid, result and info always invalid
 471     case lir_fld:            // input always valid, result and info always invalid
 472     case lir_ffree:          // input always valid, result and info always invalid
 473     case lir_push:           // input always valid, result and info always invalid
 474     case lir_pop:            // input always valid, result and info always invalid
 475     case lir_return:         // input always valid, result and info always invalid
 476     case lir_leal:           // input and result always valid, info always invalid
 477     case lir_neg:            // input and result always valid, info always invalid
 478     case lir_monaddr:        // input and result always valid, info always invalid
 479     case lir_null_check:     // input and info always valid, result always invalid
 480     case lir_move:           // input and result always valid, may have info
 481     case lir_pack64:         // input and result always valid
 482     case lir_unpack64:       // input and result always valid
 483     {
 484       assert(op->as_Op1() != NULL, "must be");
 485       LIR_Op1* op1 = (LIR_Op1*)op;
 486 
 487       if (op1->_info)                  do_info(op1->_info);
 488       if (op1->_opr->is_valid())       do_input(op1->_opr);
 489       if (op1->_result->is_valid())    do_output(op1->_result);
 490 
 491       break;
 492     }
 493 
 494     case lir_safepoint:
 495     {
 496       assert(op->as_Op1() != NULL, "must be");
 497       LIR_Op1* op1 = (LIR_Op1*)op;
 498 
 499       assert(op1->_info != NULL, "");  do_info(op1->_info);
 500       if (op1->_opr->is_valid())       do_temp(op1->_opr); // safepoints on SPARC need temporary register
 501       assert(op1->_result->is_illegal(), "safepoint does not produce value");
 502 
 503       break;
 504     }
 505 
 506 // LIR_OpConvert;
 507     case lir_convert:        // input and result always valid, info always invalid
 508     {
 509       assert(op->as_OpConvert() != NULL, "must be");
 510       LIR_OpConvert* opConvert = (LIR_OpConvert*)op;
 511 
 512       assert(opConvert->_info == NULL, "must be");
 513       if (opConvert->_opr->is_valid())       do_input(opConvert->_opr);
 514       if (opConvert->_result->is_valid())    do_output(opConvert->_result);
 515 #ifdef PPC32
 516       if (opConvert->_tmp1->is_valid())      do_temp(opConvert->_tmp1);
 517       if (opConvert->_tmp2->is_valid())      do_temp(opConvert->_tmp2);
 518 #endif
 519       do_stub(opConvert->_stub);
 520 
 521       break;
 522     }
 523 
 524 // LIR_OpBranch;
 525     case lir_branch:                   // may have info, input and result register always invalid
 526     case lir_cond_float_branch:        // may have info, input and result register always invalid
 527     {
 528       assert(op->as_OpBranch() != NULL, "must be");
 529       LIR_OpBranch* opBranch = (LIR_OpBranch*)op;
 530 
 531       if (opBranch->_info != NULL)     do_info(opBranch->_info);
 532       assert(opBranch->_result->is_illegal(), "not used");
 533       if (opBranch->_stub != NULL)     opBranch->stub()->visit(this);
 534 
 535       break;
 536     }
 537 
 538 
 539 // LIR_OpAllocObj
 540     case lir_alloc_object:
 541     {
 542       assert(op->as_OpAllocObj() != NULL, "must be");
 543       LIR_OpAllocObj* opAllocObj = (LIR_OpAllocObj*)op;
 544 
 545       if (opAllocObj->_info)                     do_info(opAllocObj->_info);
 546       if (opAllocObj->_opr->is_valid()) {        do_input(opAllocObj->_opr);
 547                                                  do_temp(opAllocObj->_opr);
 548                                         }
 549       if (opAllocObj->_tmp1->is_valid())         do_temp(opAllocObj->_tmp1);
 550       if (opAllocObj->_tmp2->is_valid())         do_temp(opAllocObj->_tmp2);
 551       if (opAllocObj->_tmp3->is_valid())         do_temp(opAllocObj->_tmp3);
 552       if (opAllocObj->_tmp4->is_valid())         do_temp(opAllocObj->_tmp4);
 553       if (opAllocObj->_result->is_valid())       do_output(opAllocObj->_result);
 554                                                  do_stub(opAllocObj->_stub);
 555       break;
 556     }
 557 
 558 
 559 // LIR_OpRoundFP;
 560     case lir_roundfp: {
 561       assert(op->as_OpRoundFP() != NULL, "must be");
 562       LIR_OpRoundFP* opRoundFP = (LIR_OpRoundFP*)op;
 563 
 564       assert(op->_info == NULL, "info not used by this instruction");
 565       assert(opRoundFP->_tmp->is_illegal(), "not used");
 566       do_input(opRoundFP->_opr);
 567       do_output(opRoundFP->_result);
 568 
 569       break;
 570     }
 571 
 572 
 573 // LIR_Op2
 574     case lir_cmp:
 575     case lir_cmp_l2i:
 576     case lir_ucmp_fd2i:
 577     case lir_cmp_fd2i:
 578     case lir_add:
 579     case lir_sub:
 580     case lir_mul:
 581     case lir_div:
 582     case lir_rem:
 583     case lir_sqrt:
 584     case lir_abs:
 585     case lir_logic_and:
 586     case lir_logic_or:
 587     case lir_logic_xor:
 588     case lir_shl:
 589     case lir_shr:
 590     case lir_ushr:
 591     case lir_xadd:
 592     case lir_xchg:
 593     case lir_assert:
 594     {
 595       assert(op->as_Op2() != NULL, "must be");
 596       LIR_Op2* op2 = (LIR_Op2*)op;
 597       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
 598              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 599 
 600       if (op2->_info)                     do_info(op2->_info);
 601       if (op2->_opr1->is_valid())         do_input(op2->_opr1);
 602       if (op2->_opr2->is_valid())         do_input(op2->_opr2);
 603       if (op2->_tmp1->is_valid())         do_temp(op2->_tmp1);
 604       if (op2->_result->is_valid())       do_output(op2->_result);
 605       if (op->code() == lir_xchg || op->code() == lir_xadd) {
 606         // on ARM and PPC, return value is loaded first so could
 607         // destroy inputs. On other platforms that implement those
 608         // (x86, sparc), the extra constrainsts are harmless.
 609         if (op2->_opr1->is_valid())       do_temp(op2->_opr1);
 610         if (op2->_opr2->is_valid())       do_temp(op2->_opr2);
 611       }
 612 
 613       break;
 614     }
 615 
 616     // special handling for cmove: right input operand must not be equal
 617     // to the result operand, otherwise the backend fails
 618     case lir_cmove:
 619     {
 620       assert(op->as_Op2() != NULL, "must be");
 621       LIR_Op2* op2 = (LIR_Op2*)op;
 622 
 623       assert(op2->_info == NULL && op2->_tmp1->is_illegal() && op2->_tmp2->is_illegal() &&
 624              op2->_tmp3->is_illegal() && op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 625       assert(op2->_opr1->is_valid() && op2->_opr2->is_valid() && op2->_result->is_valid(), "used");
 626 
 627       do_input(op2->_opr1);
 628       do_input(op2->_opr2);
 629       do_temp(op2->_opr2);
 630       do_output(op2->_result);
 631 
 632       break;
 633     }
 634 
 635     // vspecial handling for strict operations: register input operands
 636     // as temp to guarantee that they do not overlap with other
 637     // registers
 638     case lir_mul_strictfp:
 639     case lir_div_strictfp:
 640     {
 641       assert(op->as_Op2() != NULL, "must be");
 642       LIR_Op2* op2 = (LIR_Op2*)op;
 643 
 644       assert(op2->_info == NULL, "not used");
 645       assert(op2->_opr1->is_valid(), "used");
 646       assert(op2->_opr2->is_valid(), "used");
 647       assert(op2->_result->is_valid(), "used");
 648       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
 649              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 650 
 651       do_input(op2->_opr1); do_temp(op2->_opr1);
 652       do_input(op2->_opr2); do_temp(op2->_opr2);
 653       if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1);
 654       do_output(op2->_result);
 655 
 656       break;
 657     }
 658 
 659     case lir_throw: {
 660       assert(op->as_Op2() != NULL, "must be");
 661       LIR_Op2* op2 = (LIR_Op2*)op;
 662 
 663       if (op2->_info)                     do_info(op2->_info);
 664       if (op2->_opr1->is_valid())         do_temp(op2->_opr1);
 665       if (op2->_opr2->is_valid())         do_input(op2->_opr2); // exception object is input parameter
 666       assert(op2->_result->is_illegal(), "no result");
 667       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
 668              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 669 
 670       break;
 671     }
 672 
 673     case lir_unwind: {
 674       assert(op->as_Op1() != NULL, "must be");
 675       LIR_Op1* op1 = (LIR_Op1*)op;
 676 
 677       assert(op1->_info == NULL, "no info");
 678       assert(op1->_opr->is_valid(), "exception oop");         do_input(op1->_opr);
 679       assert(op1->_result->is_illegal(), "no result");
 680 
 681       break;
 682     }
 683 
 684 // LIR_Op3
 685     case lir_idiv:
 686     case lir_irem: {
 687       assert(op->as_Op3() != NULL, "must be");
 688       LIR_Op3* op3= (LIR_Op3*)op;
 689 
 690       if (op3->_info)                     do_info(op3->_info);
 691       if (op3->_opr1->is_valid())         do_input(op3->_opr1);
 692 
 693       // second operand is input and temp, so ensure that second operand
 694       // and third operand get not the same register
 695       if (op3->_opr2->is_valid())         do_input(op3->_opr2);
 696       if (op3->_opr2->is_valid())         do_temp(op3->_opr2);
 697       if (op3->_opr3->is_valid())         do_temp(op3->_opr3);
 698 
 699       if (op3->_result->is_valid())       do_output(op3->_result);
 700 
 701       break;
 702     }
 703 
 704     case lir_fmad:
 705     case lir_fmaf: {
 706       assert(op->as_Op3() != NULL, "must be");
 707       LIR_Op3* op3= (LIR_Op3*)op;
 708       assert(op3->_info == NULL, "no info");
 709       do_input(op3->_opr1);
 710       do_input(op3->_opr2);
 711       do_input(op3->_opr3);
 712       do_output(op3->_result);
 713       break;
 714     }
 715 
 716 // LIR_OpJavaCall
 717     case lir_static_call:
 718     case lir_optvirtual_call:
 719     case lir_icvirtual_call:
 720     case lir_virtual_call:
 721     case lir_dynamic_call: {
 722       LIR_OpJavaCall* opJavaCall = op->as_OpJavaCall();
 723       assert(opJavaCall != NULL, "must be");
 724 
 725       if (opJavaCall->_receiver->is_valid())     do_input(opJavaCall->_receiver);
 726 
 727       // only visit register parameters
 728       int n = opJavaCall->_arguments->length();
 729       for (int i = opJavaCall->_receiver->is_valid() ? 1 : 0; i < n; i++) {
 730         if (!opJavaCall->_arguments->at(i)->is_pointer()) {
 731           do_input(*opJavaCall->_arguments->adr_at(i));
 732         }
 733       }
 734 
 735       if (opJavaCall->_info)                     do_info(opJavaCall->_info);
 736       if (FrameMap::method_handle_invoke_SP_save_opr() != LIR_OprFact::illegalOpr &&
 737           opJavaCall->is_method_handle_invoke()) {
 738         opJavaCall->_method_handle_invoke_SP_save_opr = FrameMap::method_handle_invoke_SP_save_opr();
 739         do_temp(opJavaCall->_method_handle_invoke_SP_save_opr);
 740       }
 741       do_call();
 742       if (opJavaCall->_result->is_valid())       do_output(opJavaCall->_result);
 743 
 744       break;
 745     }
 746 
 747 
 748 // LIR_OpRTCall
 749     case lir_rtcall: {
 750       assert(op->as_OpRTCall() != NULL, "must be");
 751       LIR_OpRTCall* opRTCall = (LIR_OpRTCall*)op;
 752 
 753       // only visit register parameters
 754       int n = opRTCall->_arguments->length();
 755       for (int i = 0; i < n; i++) {
 756         if (!opRTCall->_arguments->at(i)->is_pointer()) {
 757           do_input(*opRTCall->_arguments->adr_at(i));
 758         }
 759       }
 760       if (opRTCall->_info)                     do_info(opRTCall->_info);
 761       if (opRTCall->_tmp->is_valid())          do_temp(opRTCall->_tmp);
 762       do_call();
 763       if (opRTCall->_result->is_valid())       do_output(opRTCall->_result);
 764 
 765       break;
 766     }
 767 
 768 
 769 // LIR_OpArrayCopy
 770     case lir_arraycopy: {
 771       assert(op->as_OpArrayCopy() != NULL, "must be");
 772       LIR_OpArrayCopy* opArrayCopy = (LIR_OpArrayCopy*)op;
 773 
 774       assert(opArrayCopy->_result->is_illegal(), "unused");
 775       assert(opArrayCopy->_src->is_valid(), "used");          do_input(opArrayCopy->_src);     do_temp(opArrayCopy->_src);
 776       assert(opArrayCopy->_src_pos->is_valid(), "used");      do_input(opArrayCopy->_src_pos); do_temp(opArrayCopy->_src_pos);
 777       assert(opArrayCopy->_dst->is_valid(), "used");          do_input(opArrayCopy->_dst);     do_temp(opArrayCopy->_dst);
 778       assert(opArrayCopy->_dst_pos->is_valid(), "used");      do_input(opArrayCopy->_dst_pos); do_temp(opArrayCopy->_dst_pos);
 779       assert(opArrayCopy->_length->is_valid(), "used");       do_input(opArrayCopy->_length);  do_temp(opArrayCopy->_length);
 780       assert(opArrayCopy->_tmp->is_valid(), "used");          do_temp(opArrayCopy->_tmp);
 781       if (opArrayCopy->_info)                     do_info(opArrayCopy->_info);
 782 
 783       // the implementation of arraycopy always has a call into the runtime
 784       do_call();
 785 
 786       break;
 787     }
 788 
 789 
 790 // LIR_OpUpdateCRC32
 791     case lir_updatecrc32: {
 792       assert(op->as_OpUpdateCRC32() != NULL, "must be");
 793       LIR_OpUpdateCRC32* opUp = (LIR_OpUpdateCRC32*)op;
 794 
 795       assert(opUp->_crc->is_valid(), "used");          do_input(opUp->_crc);     do_temp(opUp->_crc);
 796       assert(opUp->_val->is_valid(), "used");          do_input(opUp->_val);     do_temp(opUp->_val);
 797       assert(opUp->_result->is_valid(), "used");       do_output(opUp->_result);
 798       assert(opUp->_info == NULL, "no info for LIR_OpUpdateCRC32");
 799 
 800       break;
 801     }
 802 
 803 
 804 // LIR_OpLock
 805     case lir_lock:
 806     case lir_unlock: {
 807       assert(op->as_OpLock() != NULL, "must be");
 808       LIR_OpLock* opLock = (LIR_OpLock*)op;
 809 
 810       if (opLock->_info)                          do_info(opLock->_info);
 811 
 812       // TODO: check if these operands really have to be temp
 813       // (or if input is sufficient). This may have influence on the oop map!
 814       assert(opLock->_lock->is_valid(), "used");  do_temp(opLock->_lock);
 815       assert(opLock->_hdr->is_valid(),  "used");  do_temp(opLock->_hdr);
 816       assert(opLock->_obj->is_valid(),  "used");  do_temp(opLock->_obj);
 817 
 818       if (opLock->_scratch->is_valid())           do_temp(opLock->_scratch);
 819       assert(opLock->_result->is_illegal(), "unused");
 820 
 821       do_stub(opLock->_stub);
 822 
 823       break;
 824     }
 825 
 826 
 827 // LIR_OpDelay
 828     case lir_delay_slot: {
 829       assert(op->as_OpDelay() != NULL, "must be");
 830       LIR_OpDelay* opDelay = (LIR_OpDelay*)op;
 831 
 832       visit(opDelay->delay_op());
 833       break;
 834     }
 835 
 836 // LIR_OpTypeCheck
 837     case lir_instanceof:
 838     case lir_checkcast:
 839     case lir_store_check: {
 840       assert(op->as_OpTypeCheck() != NULL, "must be");
 841       LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op;
 842 
 843       if (opTypeCheck->_info_for_exception)       do_info(opTypeCheck->_info_for_exception);
 844       if (opTypeCheck->_info_for_patch)           do_info(opTypeCheck->_info_for_patch);
 845       if (opTypeCheck->_object->is_valid())       do_input(opTypeCheck->_object);
 846       if (op->code() == lir_store_check && opTypeCheck->_object->is_valid()) {
 847         do_temp(opTypeCheck->_object);
 848       }
 849       if (opTypeCheck->_array->is_valid())        do_input(opTypeCheck->_array);
 850       if (opTypeCheck->_tmp1->is_valid())         do_temp(opTypeCheck->_tmp1);
 851       if (opTypeCheck->_tmp2->is_valid())         do_temp(opTypeCheck->_tmp2);
 852       if (opTypeCheck->_tmp3->is_valid())         do_temp(opTypeCheck->_tmp3);
 853       if (opTypeCheck->_result->is_valid())       do_output(opTypeCheck->_result);
 854                                                   do_stub(opTypeCheck->_stub);
 855       break;
 856     }
 857 
 858 // LIR_OpCompareAndSwap
 859     case lir_cas_long:
 860     case lir_cas_obj:
 861     case lir_cas_int: {
 862       assert(op->as_OpCompareAndSwap() != NULL, "must be");
 863       LIR_OpCompareAndSwap* opCompareAndSwap = (LIR_OpCompareAndSwap*)op;
 864 
 865       assert(opCompareAndSwap->_addr->is_valid(),      "used");
 866       assert(opCompareAndSwap->_cmp_value->is_valid(), "used");
 867       assert(opCompareAndSwap->_new_value->is_valid(), "used");
 868       if (opCompareAndSwap->_info)                    do_info(opCompareAndSwap->_info);
 869                                                       do_input(opCompareAndSwap->_addr);
 870                                                       do_temp(opCompareAndSwap->_addr);
 871                                                       do_input(opCompareAndSwap->_cmp_value);
 872                                                       do_temp(opCompareAndSwap->_cmp_value);
 873                                                       do_input(opCompareAndSwap->_new_value);
 874                                                       do_temp(opCompareAndSwap->_new_value);
 875       if (opCompareAndSwap->_tmp1->is_valid())        do_temp(opCompareAndSwap->_tmp1);
 876       if (opCompareAndSwap->_tmp2->is_valid())        do_temp(opCompareAndSwap->_tmp2);
 877       if (opCompareAndSwap->_result->is_valid())      do_output(opCompareAndSwap->_result);
 878 
 879       break;
 880     }
 881 
 882 
 883 // LIR_OpAllocArray;
 884     case lir_alloc_array: {
 885       assert(op->as_OpAllocArray() != NULL, "must be");
 886       LIR_OpAllocArray* opAllocArray = (LIR_OpAllocArray*)op;
 887 
 888       if (opAllocArray->_info)                        do_info(opAllocArray->_info);
 889       if (opAllocArray->_klass->is_valid())           do_input(opAllocArray->_klass); do_temp(opAllocArray->_klass);
 890       if (opAllocArray->_len->is_valid())             do_input(opAllocArray->_len);   do_temp(opAllocArray->_len);
 891       if (opAllocArray->_tmp1->is_valid())            do_temp(opAllocArray->_tmp1);
 892       if (opAllocArray->_tmp2->is_valid())            do_temp(opAllocArray->_tmp2);
 893       if (opAllocArray->_tmp3->is_valid())            do_temp(opAllocArray->_tmp3);
 894       if (opAllocArray->_tmp4->is_valid())            do_temp(opAllocArray->_tmp4);
 895       if (opAllocArray->_result->is_valid())          do_output(opAllocArray->_result);
 896                                                       do_stub(opAllocArray->_stub);
 897       break;
 898     }
 899 
 900 // LIR_OpProfileCall:
 901     case lir_profile_call: {
 902       assert(op->as_OpProfileCall() != NULL, "must be");
 903       LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op;
 904 
 905       if (opProfileCall->_recv->is_valid())              do_temp(opProfileCall->_recv);
 906       assert(opProfileCall->_mdo->is_valid(), "used");   do_temp(opProfileCall->_mdo);
 907       assert(opProfileCall->_tmp1->is_valid(), "used");  do_temp(opProfileCall->_tmp1);
 908       break;
 909     }
 910 
 911 // LIR_OpProfileType:
 912     case lir_profile_type: {
 913       assert(op->as_OpProfileType() != NULL, "must be");
 914       LIR_OpProfileType* opProfileType = (LIR_OpProfileType*)op;
 915 
 916       do_input(opProfileType->_mdp); do_temp(opProfileType->_mdp);
 917       do_input(opProfileType->_obj);
 918       do_temp(opProfileType->_tmp);
 919       break;
 920     }
 921   default:
 922     op->visit(this);
 923   }
 924 }
 925 
 926 void LIR_Op::visit(LIR_OpVisitState* state) {
 927   ShouldNotReachHere();
 928 }
 929 
 930 void LIR_OpVisitState::do_stub(CodeStub* stub) {
 931   if (stub != NULL) {
 932     stub->visit(this);
 933   }
 934 }
 935 
 936 XHandlers* LIR_OpVisitState::all_xhandler() {
 937   XHandlers* result = NULL;
 938 
 939   int i;
 940   for (i = 0; i < info_count(); i++) {
 941     if (info_at(i)->exception_handlers() != NULL) {
 942       result = info_at(i)->exception_handlers();
 943       break;
 944     }
 945   }
 946 
 947 #ifdef ASSERT
 948   for (i = 0; i < info_count(); i++) {
 949     assert(info_at(i)->exception_handlers() == NULL ||
 950            info_at(i)->exception_handlers() == result,
 951            "only one xhandler list allowed per LIR-operation");
 952   }
 953 #endif
 954 
 955   if (result != NULL) {
 956     return result;
 957   } else {
 958     return new XHandlers();
 959   }
 960 
 961   return result;
 962 }
 963 
 964 
 965 #ifdef ASSERT
 966 bool LIR_OpVisitState::no_operands(LIR_Op* op) {
 967   visit(op);
 968 
 969   return opr_count(inputMode) == 0 &&
 970          opr_count(outputMode) == 0 &&
 971          opr_count(tempMode) == 0 &&
 972          info_count() == 0 &&
 973          !has_call() &&
 974          !has_slow_case();
 975 }
 976 #endif
 977 
 978 //---------------------------------------------------
 979 
 980 
 981 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) {
 982   masm->emit_call(this);
 983 }
 984 
 985 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) {
 986   masm->emit_rtcall(this);
 987 }
 988 
 989 void LIR_OpLabel::emit_code(LIR_Assembler* masm) {
 990   masm->emit_opLabel(this);
 991 }
 992 
 993 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) {
 994   masm->emit_arraycopy(this);
 995   masm->append_code_stub(stub());
 996 }
 997 
 998 void LIR_OpUpdateCRC32::emit_code(LIR_Assembler* masm) {
 999   masm->emit_updatecrc32(this);
1000 }
1001 
1002 void LIR_Op0::emit_code(LIR_Assembler* masm) {
1003   masm->emit_op0(this);
1004 }
1005 
1006 void LIR_Op1::emit_code(LIR_Assembler* masm) {
1007   masm->emit_op1(this);
1008 }
1009 
1010 void LIR_OpAllocObj::emit_code(LIR_Assembler* masm) {
1011   masm->emit_alloc_obj(this);
1012   masm->append_code_stub(stub());
1013 }
1014 
1015 void LIR_OpBranch::emit_code(LIR_Assembler* masm) {
1016   masm->emit_opBranch(this);
1017   if (stub()) {
1018     masm->append_code_stub(stub());
1019   }
1020 }
1021 
1022 void LIR_OpConvert::emit_code(LIR_Assembler* masm) {
1023   masm->emit_opConvert(this);
1024   if (stub() != NULL) {
1025     masm->append_code_stub(stub());
1026   }
1027 }
1028 
1029 void LIR_Op2::emit_code(LIR_Assembler* masm) {
1030   masm->emit_op2(this);
1031 }
1032 
1033 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) {
1034   masm->emit_alloc_array(this);
1035   masm->append_code_stub(stub());
1036 }
1037 
1038 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) {
1039   masm->emit_opTypeCheck(this);
1040   if (stub()) {
1041     masm->append_code_stub(stub());
1042   }
1043 }
1044 
1045 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) {
1046   masm->emit_compare_and_swap(this);
1047 }
1048 
1049 void LIR_Op3::emit_code(LIR_Assembler* masm) {
1050   masm->emit_op3(this);
1051 }
1052 
1053 void LIR_OpLock::emit_code(LIR_Assembler* masm) {
1054   masm->emit_lock(this);
1055   if (stub()) {
1056     masm->append_code_stub(stub());
1057   }
1058 }
1059 
1060 #ifdef ASSERT
1061 void LIR_OpAssert::emit_code(LIR_Assembler* masm) {
1062   masm->emit_assert(this);
1063 }
1064 #endif
1065 
1066 void LIR_OpDelay::emit_code(LIR_Assembler* masm) {
1067   masm->emit_delay(this);
1068 }
1069 
1070 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) {
1071   masm->emit_profile_call(this);
1072 }
1073 
1074 void LIR_OpProfileType::emit_code(LIR_Assembler* masm) {
1075   masm->emit_profile_type(this);
1076 }
1077 
1078 // LIR_List
1079 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block)
1080   : _operations(8)
1081   , _compilation(compilation)
1082 #ifndef PRODUCT
1083   , _block(block)
1084 #endif
1085 #ifdef ASSERT
1086   , _file(NULL)
1087   , _line(0)
1088 #endif
1089 { }
1090 
1091 
1092 #ifdef ASSERT
1093 void LIR_List::set_file_and_line(const char * file, int line) {
1094   const char * f = strrchr(file, '/');
1095   if (f == NULL) f = strrchr(file, '\\');
1096   if (f == NULL) {
1097     f = file;
1098   } else {
1099     f++;
1100   }
1101   _file = f;
1102   _line = line;
1103 }
1104 #endif
1105 
1106 
1107 void LIR_List::append(LIR_InsertionBuffer* buffer) {
1108   assert(this == buffer->lir_list(), "wrong lir list");
1109   const int n = _operations.length();
1110 
1111   if (buffer->number_of_ops() > 0) {
1112     // increase size of instructions list
1113     _operations.at_grow(n + buffer->number_of_ops() - 1, NULL);
1114     // insert ops from buffer into instructions list
1115     int op_index = buffer->number_of_ops() - 1;
1116     int ip_index = buffer->number_of_insertion_points() - 1;
1117     int from_index = n - 1;
1118     int to_index = _operations.length() - 1;
1119     for (; ip_index >= 0; ip_index --) {
1120       int index = buffer->index_at(ip_index);
1121       // make room after insertion point
1122       while (index < from_index) {
1123         _operations.at_put(to_index --, _operations.at(from_index --));
1124       }
1125       // insert ops from buffer
1126       for (int i = buffer->count_at(ip_index); i > 0; i --) {
1127         _operations.at_put(to_index --, buffer->op_at(op_index --));
1128       }
1129     }
1130   }
1131 
1132   buffer->finish();
1133 }
1134 
1135 
1136 void LIR_List::oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info) {
1137   assert(reg->type() == T_OBJECT, "bad reg");
1138   append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o),  reg, T_OBJECT, lir_patch_normal, info));
1139 }
1140 
1141 void LIR_List::klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info) {
1142   assert(reg->type() == T_METADATA, "bad reg");
1143   append(new LIR_Op1(lir_move, LIR_OprFact::metadataConst(o), reg, T_METADATA, lir_patch_normal, info));
1144 }
1145 
1146 void LIR_List::load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1147   append(new LIR_Op1(
1148             lir_move,
1149             LIR_OprFact::address(addr),
1150             src,
1151             addr->type(),
1152             patch_code,
1153             info));
1154 }
1155 
1156 
1157 void LIR_List::volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1158   append(new LIR_Op1(
1159             lir_move,
1160             LIR_OprFact::address(address),
1161             dst,
1162             address->type(),
1163             patch_code,
1164             info, lir_move_volatile));
1165 }
1166 
1167 void LIR_List::volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1168   append(new LIR_Op1(
1169             lir_move,
1170             LIR_OprFact::address(new LIR_Address(base, offset, type)),
1171             dst,
1172             type,
1173             patch_code,
1174             info, lir_move_volatile));
1175 }
1176 
1177 
1178 void LIR_List::store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1179   append(new LIR_Op1(
1180             lir_move,
1181             LIR_OprFact::intConst(v),
1182             LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1183             type,
1184             patch_code,
1185             info));
1186 }
1187 
1188 
1189 void LIR_List::store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1190   append(new LIR_Op1(
1191             lir_move,
1192             LIR_OprFact::oopConst(o),
1193             LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1194             type,
1195             patch_code,
1196             info));
1197 }
1198 
1199 
1200 void LIR_List::store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1201   append(new LIR_Op1(
1202             lir_move,
1203             src,
1204             LIR_OprFact::address(addr),
1205             addr->type(),
1206             patch_code,
1207             info));
1208 }
1209 
1210 
1211 void LIR_List::volatile_store_mem_reg(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1212   append(new LIR_Op1(
1213             lir_move,
1214             src,
1215             LIR_OprFact::address(addr),
1216             addr->type(),
1217             patch_code,
1218             info,
1219             lir_move_volatile));
1220 }
1221 
1222 void LIR_List::volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1223   append(new LIR_Op1(
1224             lir_move,
1225             src,
1226             LIR_OprFact::address(new LIR_Address(base, offset, type)),
1227             type,
1228             patch_code,
1229             info, lir_move_volatile));
1230 }
1231 
1232 
1233 void LIR_List::idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1234   append(new LIR_Op3(
1235                     lir_idiv,
1236                     left,
1237                     right,
1238                     tmp,
1239                     res,
1240                     info));
1241 }
1242 
1243 
1244 void LIR_List::idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1245   append(new LIR_Op3(
1246                     lir_idiv,
1247                     left,
1248                     LIR_OprFact::intConst(right),
1249                     tmp,
1250                     res,
1251                     info));
1252 }
1253 
1254 
1255 void LIR_List::irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1256   append(new LIR_Op3(
1257                     lir_irem,
1258                     left,
1259                     right,
1260                     tmp,
1261                     res,
1262                     info));
1263 }
1264 
1265 
1266 void LIR_List::irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1267   append(new LIR_Op3(
1268                     lir_irem,
1269                     left,
1270                     LIR_OprFact::intConst(right),
1271                     tmp,
1272                     res,
1273                     info));
1274 }
1275 
1276 
1277 void LIR_List::cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info) {
1278   append(new LIR_Op2(
1279                     lir_cmp,
1280                     condition,
1281                     LIR_OprFact::address(new LIR_Address(base, disp, T_INT)),
1282                     LIR_OprFact::intConst(c),
1283                     info));
1284 }
1285 
1286 
1287 void LIR_List::cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info) {
1288   append(new LIR_Op2(
1289                     lir_cmp,
1290                     condition,
1291                     reg,
1292                     LIR_OprFact::address(addr),
1293                     info));
1294 }
1295 
1296 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1297                                int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
1298   append(new LIR_OpAllocObj(
1299                            klass,
1300                            dst,
1301                            t1,
1302                            t2,
1303                            t3,
1304                            t4,
1305                            header_size,
1306                            object_size,
1307                            init_check,
1308                            stub));
1309 }
1310 
1311 void LIR_List::allocate_array(LIR_Opr dst, LIR_Opr len, LIR_Opr t1,LIR_Opr t2, LIR_Opr t3,LIR_Opr t4, BasicType type, LIR_Opr klass, CodeStub* stub) {
1312   append(new LIR_OpAllocArray(
1313                            klass,
1314                            len,
1315                            dst,
1316                            t1,
1317                            t2,
1318                            t3,
1319                            t4,
1320                            type,
1321                            stub));
1322 }
1323 
1324 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1325  append(new LIR_Op2(
1326                     lir_shl,
1327                     value,
1328                     count,
1329                     dst,
1330                     tmp));
1331 }
1332 
1333 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1334  append(new LIR_Op2(
1335                     lir_shr,
1336                     value,
1337                     count,
1338                     dst,
1339                     tmp));
1340 }
1341 
1342 
1343 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1344  append(new LIR_Op2(
1345                     lir_ushr,
1346                     value,
1347                     count,
1348                     dst,
1349                     tmp));
1350 }
1351 
1352 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) {
1353   append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i,
1354                      left,
1355                      right,
1356                      dst));
1357 }
1358 
1359 void LIR_List::lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info) {
1360   append(new LIR_OpLock(
1361                     lir_lock,
1362                     hdr,
1363                     obj,
1364                     lock,
1365                     scratch,
1366                     stub,
1367                     info));
1368 }
1369 
1370 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) {
1371   append(new LIR_OpLock(
1372                     lir_unlock,
1373                     hdr,
1374                     obj,
1375                     lock,
1376                     scratch,
1377                     stub,
1378                     NULL));
1379 }
1380 
1381 
1382 void check_LIR() {
1383   // cannot do the proper checking as PRODUCT and other modes return different results
1384   // guarantee(sizeof(LIR_OprDesc) == wordSize, "may not have a v-table");
1385 }
1386 
1387 
1388 
1389 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
1390                           LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1391                           CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
1392                           ciMethod* profiled_method, int profiled_bci) {
1393   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass,
1394                                            tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub);
1395   if (profiled_method != NULL) {
1396     c->set_profiled_method(profiled_method);
1397     c->set_profiled_bci(profiled_bci);
1398     c->set_should_profile(true);
1399   }
1400   append(c);
1401 }
1402 
1403 void LIR_List::instanceof(LIR_Opr result, LIR_Opr object, ciKlass* klass, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check, CodeEmitInfo* info_for_patch, ciMethod* profiled_method, int profiled_bci) {
1404   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, NULL, info_for_patch, NULL);
1405   if (profiled_method != NULL) {
1406     c->set_profiled_method(profiled_method);
1407     c->set_profiled_bci(profiled_bci);
1408     c->set_should_profile(true);
1409   }
1410   append(c);
1411 }
1412 
1413 
1414 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
1415                            CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) {
1416   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception);
1417   if (profiled_method != NULL) {
1418     c->set_profiled_method(profiled_method);
1419     c->set_profiled_bci(profiled_bci);
1420     c->set_should_profile(true);
1421   }
1422   append(c);
1423 }
1424 
1425 void LIR_List::null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null) {
1426   if (deoptimize_on_null) {
1427     // Emit an explicit null check and deoptimize if opr is null
1428     CodeStub* deopt = new DeoptimizeStub(info, Deoptimization::Reason_null_check, Deoptimization::Action_none);
1429     cmp(lir_cond_equal, opr, LIR_OprFact::oopConst(NULL));
1430     branch(lir_cond_equal, T_OBJECT, deopt);
1431   } else {
1432     // Emit an implicit null check
1433     append(new LIR_Op1(lir_null_check, opr, info));
1434   }
1435 }
1436 
1437 void LIR_List::cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1438                         LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1439   append(new LIR_OpCompareAndSwap(lir_cas_long, addr, cmp_value, new_value, t1, t2, result));
1440 }
1441 
1442 void LIR_List::cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1443                        LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1444   append(new LIR_OpCompareAndSwap(lir_cas_obj, addr, cmp_value, new_value, t1, t2, result));
1445 }
1446 
1447 void LIR_List::cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1448                        LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1449   append(new LIR_OpCompareAndSwap(lir_cas_int, addr, cmp_value, new_value, t1, t2, result));
1450 }
1451 
1452 
1453 #ifdef PRODUCT
1454 
1455 void print_LIR(BlockList* blocks) {
1456 }
1457 
1458 #else
1459 // LIR_OprDesc
1460 void LIR_OprDesc::print() const {
1461   print(tty);
1462 }
1463 
1464 void LIR_OprDesc::print(outputStream* out) const {
1465   if (is_illegal()) {
1466     return;
1467   }
1468 
1469   out->print("[");
1470   if (is_pointer()) {
1471     pointer()->print_value_on(out);
1472   } else if (is_single_stack()) {
1473     out->print("stack:%d", single_stack_ix());
1474   } else if (is_double_stack()) {
1475     out->print("dbl_stack:%d",double_stack_ix());
1476   } else if (is_virtual()) {
1477     out->print("R%d", vreg_number());
1478   } else if (is_single_cpu()) {
1479     out->print("%s", as_register()->name());
1480   } else if (is_double_cpu()) {
1481     out->print("%s", as_register_hi()->name());
1482     out->print("%s", as_register_lo()->name());
1483 #if defined(X86)
1484   } else if (is_single_xmm()) {
1485     out->print("%s", as_xmm_float_reg()->name());
1486   } else if (is_double_xmm()) {
1487     out->print("%s", as_xmm_double_reg()->name());
1488   } else if (is_single_fpu()) {
1489     out->print("fpu%d", fpu_regnr());
1490   } else if (is_double_fpu()) {
1491     out->print("fpu%d", fpu_regnrLo());
1492 #elif defined(AARCH64)
1493   } else if (is_single_fpu()) {
1494     out->print("fpu%d", fpu_regnr());
1495   } else if (is_double_fpu()) {
1496     out->print("fpu%d", fpu_regnrLo());
1497 #elif defined(ARM) || defined(AARCH32)
1498   } else if (is_single_fpu()) {
1499     out->print("s%d", fpu_regnr());
1500   } else if (is_double_fpu()) {
1501     out->print("d%d", fpu_regnrLo() >> 1);
1502 #else
1503   } else if (is_single_fpu()) {
1504     out->print("%s", as_float_reg()->name());
1505   } else if (is_double_fpu()) {
1506     out->print("%s", as_double_reg()->name());
1507 #endif
1508 
1509   } else if (is_illegal()) {
1510     out->print("-");
1511   } else {
1512     out->print("Unknown Operand");
1513   }
1514   if (!is_illegal()) {
1515     out->print("|%c", type_char());
1516   }
1517   if (is_register() && is_last_use()) {
1518     out->print("(last_use)");
1519   }
1520   out->print("]");
1521 }
1522 
1523 
1524 // LIR_Address
1525 void LIR_Const::print_value_on(outputStream* out) const {
1526   switch (type()) {
1527     case T_ADDRESS:out->print("address:%d",as_jint());          break;
1528     case T_INT:    out->print("int:%d",   as_jint());           break;
1529     case T_LONG:   out->print("lng:" JLONG_FORMAT, as_jlong()); break;
1530     case T_FLOAT:  out->print("flt:%f",   as_jfloat());         break;
1531     case T_DOUBLE: out->print("dbl:%f",   as_jdouble());        break;
1532     case T_OBJECT: out->print("obj:" INTPTR_FORMAT, p2i(as_jobject()));        break;
1533     case T_METADATA: out->print("metadata:" INTPTR_FORMAT, p2i(as_metadata()));break;
1534     default:       out->print("%3d:0x" UINT64_FORMAT_X, type(), (uint64_t)as_jlong()); break;
1535   }
1536 }
1537 
1538 // LIR_Address
1539 void LIR_Address::print_value_on(outputStream* out) const {
1540   out->print("Base:"); _base->print(out);
1541   if (!_index->is_illegal()) {
1542     out->print(" Index:"); _index->print(out);
1543     switch (scale()) {
1544     case times_1: break;
1545     case times_2: out->print(" * 2"); break;
1546     case times_4: out->print(" * 4"); break;
1547     case times_8: out->print(" * 8"); break;
1548     }
1549   }
1550   out->print(" Disp: " INTX_FORMAT, _disp);
1551 }
1552 
1553 // debug output of block header without InstructionPrinter
1554 //       (because phi functions are not necessary for LIR)
1555 static void print_block(BlockBegin* x) {
1556   // print block id
1557   BlockEnd* end = x->end();
1558   tty->print("B%d ", x->block_id());
1559 
1560   // print flags
1561   if (x->is_set(BlockBegin::std_entry_flag))               tty->print("std ");
1562   if (x->is_set(BlockBegin::osr_entry_flag))               tty->print("osr ");
1563   if (x->is_set(BlockBegin::exception_entry_flag))         tty->print("ex ");
1564   if (x->is_set(BlockBegin::subroutine_entry_flag))        tty->print("jsr ");
1565   if (x->is_set(BlockBegin::backward_branch_target_flag))  tty->print("bb ");
1566   if (x->is_set(BlockBegin::linear_scan_loop_header_flag)) tty->print("lh ");
1567   if (x->is_set(BlockBegin::linear_scan_loop_end_flag))    tty->print("le ");
1568 
1569   // print block bci range
1570   tty->print("[%d, %d] ", x->bci(), (end == NULL ? -1 : end->printable_bci()));
1571 
1572   // print predecessors and successors
1573   if (x->number_of_preds() > 0) {
1574     tty->print("preds: ");
1575     for (int i = 0; i < x->number_of_preds(); i ++) {
1576       tty->print("B%d ", x->pred_at(i)->block_id());
1577     }
1578   }
1579 
1580   if (x->number_of_sux() > 0) {
1581     tty->print("sux: ");
1582     for (int i = 0; i < x->number_of_sux(); i ++) {
1583       tty->print("B%d ", x->sux_at(i)->block_id());
1584     }
1585   }
1586 
1587   // print exception handlers
1588   if (x->number_of_exception_handlers() > 0) {
1589     tty->print("xhandler: ");
1590     for (int i = 0; i < x->number_of_exception_handlers();  i++) {
1591       tty->print("B%d ", x->exception_handler_at(i)->block_id());
1592     }
1593   }
1594 
1595   tty->cr();
1596 }
1597 
1598 void print_LIR(BlockList* blocks) {
1599   tty->print_cr("LIR:");
1600   int i;
1601   for (i = 0; i < blocks->length(); i++) {
1602     BlockBegin* bb = blocks->at(i);
1603     print_block(bb);
1604     tty->print("__id_Instruction___________________________________________"); tty->cr();
1605     bb->lir()->print_instructions();
1606   }
1607 }
1608 
1609 void LIR_List::print_instructions() {
1610   for (int i = 0; i < _operations.length(); i++) {
1611     _operations.at(i)->print(); tty->cr();
1612   }
1613   tty->cr();
1614 }
1615 
1616 // LIR_Ops printing routines
1617 // LIR_Op
1618 void LIR_Op::print_on(outputStream* out) const {
1619   if (id() != -1 || PrintCFGToFile) {
1620     out->print("%4d ", id());
1621   } else {
1622     out->print("     ");
1623   }
1624   out->print("%s ", name());
1625   print_instr(out);
1626   if (info() != NULL) out->print(" [bci:%d]", info()->stack()->bci());
1627 #ifdef ASSERT
1628   if (Verbose && _file != NULL) {
1629     out->print(" (%s:%d)", _file, _line);
1630   }
1631 #endif
1632 }
1633 
1634 const char * LIR_Op::name() const {
1635   const char* s = NULL;
1636   switch(code()) {
1637      // LIR_Op0
1638      case lir_membar:                s = "membar";        break;
1639      case lir_membar_acquire:        s = "membar_acquire"; break;
1640      case lir_membar_release:        s = "membar_release"; break;
1641      case lir_membar_loadload:       s = "membar_loadload";   break;
1642      case lir_membar_storestore:     s = "membar_storestore"; break;
1643      case lir_membar_loadstore:      s = "membar_loadstore";  break;
1644      case lir_membar_storeload:      s = "membar_storeload";  break;
1645      case lir_word_align:            s = "word_align";    break;
1646      case lir_label:                 s = "label";         break;
1647      case lir_nop:                   s = "nop";           break;
1648      case lir_on_spin_wait:          s = "on_spin_wait";  break;
1649      case lir_backwardbranch_target: s = "backbranch";    break;
1650      case lir_std_entry:             s = "std_entry";     break;
1651      case lir_osr_entry:             s = "osr_entry";     break;
1652      case lir_build_frame:           s = "build_frm";     break;
1653      case lir_fpop_raw:              s = "fpop_raw";      break;
1654      case lir_24bit_FPU:             s = "24bit_FPU";     break;
1655      case lir_reset_FPU:             s = "reset_FPU";     break;
1656      case lir_breakpoint:            s = "breakpoint";    break;
1657      case lir_get_thread:            s = "get_thread";    break;
1658      // LIR_Op1
1659      case lir_fxch:                  s = "fxch";          break;
1660      case lir_fld:                   s = "fld";           break;
1661      case lir_ffree:                 s = "ffree";         break;
1662      case lir_push:                  s = "push";          break;
1663      case lir_pop:                   s = "pop";           break;
1664      case lir_null_check:            s = "null_check";    break;
1665      case lir_return:                s = "return";        break;
1666      case lir_safepoint:             s = "safepoint";     break;
1667      case lir_neg:                   s = "neg";           break;
1668      case lir_leal:                  s = "leal";          break;
1669      case lir_branch:                s = "branch";        break;
1670      case lir_cond_float_branch:     s = "flt_cond_br";   break;
1671      case lir_move:                  s = "move";          break;
1672      case lir_roundfp:               s = "roundfp";       break;
1673      case lir_rtcall:                s = "rtcall";        break;
1674      case lir_throw:                 s = "throw";         break;
1675      case lir_unwind:                s = "unwind";        break;
1676      case lir_convert:               s = "convert";       break;
1677      case lir_alloc_object:          s = "alloc_obj";     break;
1678      case lir_monaddr:               s = "mon_addr";      break;
1679      case lir_pack64:                s = "pack64";        break;
1680      case lir_unpack64:              s = "unpack64";      break;
1681      // LIR_Op2
1682      case lir_cmp:                   s = "cmp";           break;
1683      case lir_cmp_l2i:               s = "cmp_l2i";       break;
1684      case lir_ucmp_fd2i:             s = "ucomp_fd2i";    break;
1685      case lir_cmp_fd2i:              s = "comp_fd2i";     break;
1686      case lir_cmove:                 s = "cmove";         break;
1687      case lir_add:                   s = "add";           break;
1688      case lir_sub:                   s = "sub";           break;
1689      case lir_mul:                   s = "mul";           break;
1690      case lir_mul_strictfp:          s = "mul_strictfp";  break;
1691      case lir_div:                   s = "div";           break;
1692      case lir_div_strictfp:          s = "div_strictfp";  break;
1693      case lir_rem:                   s = "rem";           break;
1694      case lir_abs:                   s = "abs";           break;
1695      case lir_sqrt:                  s = "sqrt";          break;
1696      case lir_logic_and:             s = "logic_and";     break;
1697      case lir_logic_or:              s = "logic_or";      break;
1698      case lir_logic_xor:             s = "logic_xor";     break;
1699      case lir_shl:                   s = "shift_left";    break;
1700      case lir_shr:                   s = "shift_right";   break;
1701      case lir_ushr:                  s = "ushift_right";  break;
1702      case lir_alloc_array:           s = "alloc_array";   break;
1703      case lir_xadd:                  s = "xadd";          break;
1704      case lir_xchg:                  s = "xchg";          break;
1705      // LIR_Op3
1706      case lir_idiv:                  s = "idiv";          break;
1707      case lir_irem:                  s = "irem";          break;
1708      case lir_fmad:                  s = "fmad";          break;
1709      case lir_fmaf:                  s = "fmaf";          break;
1710      // LIR_OpJavaCall
1711      case lir_static_call:           s = "static";        break;
1712      case lir_optvirtual_call:       s = "optvirtual";    break;
1713      case lir_icvirtual_call:        s = "icvirtual";     break;
1714      case lir_virtual_call:          s = "virtual";       break;
1715      case lir_dynamic_call:          s = "dynamic";       break;
1716      // LIR_OpArrayCopy
1717      case lir_arraycopy:             s = "arraycopy";     break;
1718      // LIR_OpUpdateCRC32
1719      case lir_updatecrc32:           s = "updatecrc32";   break;
1720      // LIR_OpLock
1721      case lir_lock:                  s = "lock";          break;
1722      case lir_unlock:                s = "unlock";        break;
1723      // LIR_OpDelay
1724      case lir_delay_slot:            s = "delay";         break;
1725      // LIR_OpTypeCheck
1726      case lir_instanceof:            s = "instanceof";    break;
1727      case lir_checkcast:             s = "checkcast";     break;
1728      case lir_store_check:           s = "store_check";   break;
1729      // LIR_OpCompareAndSwap
1730      case lir_cas_long:              s = "cas_long";      break;
1731      case lir_cas_obj:               s = "cas_obj";      break;
1732      case lir_cas_int:               s = "cas_int";      break;
1733      // LIR_OpProfileCall
1734      case lir_profile_call:          s = "profile_call";  break;
1735      // LIR_OpProfileType
1736      case lir_profile_type:          s = "profile_type";  break;
1737      // LIR_OpAssert
1738 #ifdef ASSERT
1739      case lir_assert:                s = "assert";        break;
1740 #endif
1741      case lir_none:                  ShouldNotReachHere();break;
1742     default:                         s = "illegal_op";    break;
1743   }
1744   return s;
1745 }
1746 
1747 // LIR_OpJavaCall
1748 void LIR_OpJavaCall::print_instr(outputStream* out) const {
1749   out->print("call: ");
1750   out->print("[addr: " INTPTR_FORMAT "]", p2i(address()));
1751   if (receiver()->is_valid()) {
1752     out->print(" [recv: ");   receiver()->print(out);   out->print("]");
1753   }
1754   if (result_opr()->is_valid()) {
1755     out->print(" [result: "); result_opr()->print(out); out->print("]");
1756   }
1757 }
1758 
1759 // LIR_OpLabel
1760 void LIR_OpLabel::print_instr(outputStream* out) const {
1761   out->print("[label:" INTPTR_FORMAT "]", p2i(_label));
1762 }
1763 
1764 // LIR_OpArrayCopy
1765 void LIR_OpArrayCopy::print_instr(outputStream* out) const {
1766   src()->print(out);     out->print(" ");
1767   src_pos()->print(out); out->print(" ");
1768   dst()->print(out);     out->print(" ");
1769   dst_pos()->print(out); out->print(" ");
1770   length()->print(out);  out->print(" ");
1771   tmp()->print(out);     out->print(" ");
1772 }
1773 
1774 // LIR_OpUpdateCRC32
1775 void LIR_OpUpdateCRC32::print_instr(outputStream* out) const {
1776   crc()->print(out);     out->print(" ");
1777   val()->print(out);     out->print(" ");
1778   result_opr()->print(out); out->print(" ");
1779 }
1780 
1781 // LIR_OpCompareAndSwap
1782 void LIR_OpCompareAndSwap::print_instr(outputStream* out) const {
1783   addr()->print(out);      out->print(" ");
1784   cmp_value()->print(out); out->print(" ");
1785   new_value()->print(out); out->print(" ");
1786   tmp1()->print(out);      out->print(" ");
1787   tmp2()->print(out);      out->print(" ");
1788 
1789 }
1790 
1791 // LIR_Op0
1792 void LIR_Op0::print_instr(outputStream* out) const {
1793   result_opr()->print(out);
1794 }
1795 
1796 // LIR_Op1
1797 const char * LIR_Op1::name() const {
1798   if (code() == lir_move) {
1799     switch (move_kind()) {
1800     case lir_move_normal:
1801       return "move";
1802     case lir_move_unaligned:
1803       return "unaligned move";
1804     case lir_move_volatile:
1805       return "volatile_move";
1806     case lir_move_wide:
1807       return "wide_move";
1808     default:
1809       ShouldNotReachHere();
1810     return "illegal_op";
1811     }
1812   } else {
1813     return LIR_Op::name();
1814   }
1815 }
1816 
1817 
1818 void LIR_Op1::print_instr(outputStream* out) const {
1819   _opr->print(out);         out->print(" ");
1820   result_opr()->print(out); out->print(" ");
1821   print_patch_code(out, patch_code());
1822 }
1823 
1824 
1825 // LIR_Op1
1826 void LIR_OpRTCall::print_instr(outputStream* out) const {
1827   intx a = (intx)addr();
1828   out->print("%s", Runtime1::name_for_address(addr()));
1829   out->print(" ");
1830   tmp()->print(out);
1831 }
1832 
1833 void LIR_Op1::print_patch_code(outputStream* out, LIR_PatchCode code) {
1834   switch(code) {
1835     case lir_patch_none:                                 break;
1836     case lir_patch_low:    out->print("[patch_low]");    break;
1837     case lir_patch_high:   out->print("[patch_high]");   break;
1838     case lir_patch_normal: out->print("[patch_normal]"); break;
1839     default: ShouldNotReachHere();
1840   }
1841 }
1842 
1843 // LIR_OpBranch
1844 void LIR_OpBranch::print_instr(outputStream* out) const {
1845   print_condition(out, cond());             out->print(" ");
1846   if (block() != NULL) {
1847     out->print("[B%d] ", block()->block_id());
1848   } else if (stub() != NULL) {
1849     out->print("[");
1850     stub()->print_name(out);
1851     out->print(": " INTPTR_FORMAT "]", p2i(stub()));
1852     if (stub()->info() != NULL) out->print(" [bci:%d]", stub()->info()->stack()->bci());
1853   } else {
1854     out->print("[label:" INTPTR_FORMAT "] ", p2i(label()));
1855   }
1856   if (ublock() != NULL) {
1857     out->print("unordered: [B%d] ", ublock()->block_id());
1858   }
1859 }
1860 
1861 void LIR_Op::print_condition(outputStream* out, LIR_Condition cond) {
1862   switch(cond) {
1863     case lir_cond_equal:           out->print("[EQ]");      break;
1864     case lir_cond_notEqual:        out->print("[NE]");      break;
1865     case lir_cond_less:            out->print("[LT]");      break;
1866     case lir_cond_lessEqual:       out->print("[LE]");      break;
1867     case lir_cond_greaterEqual:    out->print("[GE]");      break;
1868     case lir_cond_greater:         out->print("[GT]");      break;
1869     case lir_cond_belowEqual:      out->print("[BE]");      break;
1870     case lir_cond_aboveEqual:      out->print("[AE]");      break;
1871     case lir_cond_always:          out->print("[AL]");      break;
1872     default:                       out->print("[%d]",cond); break;
1873   }
1874 }
1875 
1876 // LIR_OpConvert
1877 void LIR_OpConvert::print_instr(outputStream* out) const {
1878   print_bytecode(out, bytecode());
1879   in_opr()->print(out);                  out->print(" ");
1880   result_opr()->print(out);              out->print(" ");
1881 #ifdef PPC32
1882   if(tmp1()->is_valid()) {
1883     tmp1()->print(out); out->print(" ");
1884     tmp2()->print(out); out->print(" ");
1885   }
1886 #endif
1887 }
1888 
1889 void LIR_OpConvert::print_bytecode(outputStream* out, Bytecodes::Code code) {
1890   switch(code) {
1891     case Bytecodes::_d2f: out->print("[d2f] "); break;
1892     case Bytecodes::_d2i: out->print("[d2i] "); break;
1893     case Bytecodes::_d2l: out->print("[d2l] "); break;
1894     case Bytecodes::_f2d: out->print("[f2d] "); break;
1895     case Bytecodes::_f2i: out->print("[f2i] "); break;
1896     case Bytecodes::_f2l: out->print("[f2l] "); break;
1897     case Bytecodes::_i2b: out->print("[i2b] "); break;
1898     case Bytecodes::_i2c: out->print("[i2c] "); break;
1899     case Bytecodes::_i2d: out->print("[i2d] "); break;
1900     case Bytecodes::_i2f: out->print("[i2f] "); break;
1901     case Bytecodes::_i2l: out->print("[i2l] "); break;
1902     case Bytecodes::_i2s: out->print("[i2s] "); break;
1903     case Bytecodes::_l2i: out->print("[l2i] "); break;
1904     case Bytecodes::_l2f: out->print("[l2f] "); break;
1905     case Bytecodes::_l2d: out->print("[l2d] "); break;
1906     default:
1907       out->print("[?%d]",code);
1908     break;
1909   }
1910 }
1911 
1912 void LIR_OpAllocObj::print_instr(outputStream* out) const {
1913   klass()->print(out);                      out->print(" ");
1914   obj()->print(out);                        out->print(" ");
1915   tmp1()->print(out);                       out->print(" ");
1916   tmp2()->print(out);                       out->print(" ");
1917   tmp3()->print(out);                       out->print(" ");
1918   tmp4()->print(out);                       out->print(" ");
1919   out->print("[hdr:%d]", header_size()); out->print(" ");
1920   out->print("[obj:%d]", object_size()); out->print(" ");
1921   out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
1922 }
1923 
1924 void LIR_OpRoundFP::print_instr(outputStream* out) const {
1925   _opr->print(out);         out->print(" ");
1926   tmp()->print(out);        out->print(" ");
1927   result_opr()->print(out); out->print(" ");
1928 }
1929 
1930 // LIR_Op2
1931 void LIR_Op2::print_instr(outputStream* out) const {
1932   if (code() == lir_cmove || code() == lir_cmp) {
1933     print_condition(out, condition());         out->print(" ");
1934   }
1935   in_opr1()->print(out);    out->print(" ");
1936   in_opr2()->print(out);    out->print(" ");
1937   if (tmp1_opr()->is_valid()) { tmp1_opr()->print(out);    out->print(" "); }
1938   if (tmp2_opr()->is_valid()) { tmp2_opr()->print(out);    out->print(" "); }
1939   if (tmp3_opr()->is_valid()) { tmp3_opr()->print(out);    out->print(" "); }
1940   if (tmp4_opr()->is_valid()) { tmp4_opr()->print(out);    out->print(" "); }
1941   if (tmp5_opr()->is_valid()) { tmp5_opr()->print(out);    out->print(" "); }
1942   result_opr()->print(out);
1943 }
1944 
1945 void LIR_OpAllocArray::print_instr(outputStream* out) const {
1946   klass()->print(out);                   out->print(" ");
1947   len()->print(out);                     out->print(" ");
1948   obj()->print(out);                     out->print(" ");
1949   tmp1()->print(out);                    out->print(" ");
1950   tmp2()->print(out);                    out->print(" ");
1951   tmp3()->print(out);                    out->print(" ");
1952   tmp4()->print(out);                    out->print(" ");
1953   out->print("[type:0x%x]", type());     out->print(" ");
1954   out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
1955 }
1956 
1957 
1958 void LIR_OpTypeCheck::print_instr(outputStream* out) const {
1959   object()->print(out);                  out->print(" ");
1960   if (code() == lir_store_check) {
1961     array()->print(out);                 out->print(" ");
1962   }
1963   if (code() != lir_store_check) {
1964     klass()->print_name_on(out);         out->print(" ");
1965     if (fast_check())                 out->print("fast_check ");
1966   }
1967   tmp1()->print(out);                    out->print(" ");
1968   tmp2()->print(out);                    out->print(" ");
1969   tmp3()->print(out);                    out->print(" ");
1970   result_opr()->print(out);              out->print(" ");
1971   if (info_for_exception() != NULL) out->print(" [bci:%d]", info_for_exception()->stack()->bci());
1972 }
1973 
1974 
1975 // LIR_Op3
1976 void LIR_Op3::print_instr(outputStream* out) const {
1977   in_opr1()->print(out);    out->print(" ");
1978   in_opr2()->print(out);    out->print(" ");
1979   in_opr3()->print(out);    out->print(" ");
1980   result_opr()->print(out);
1981 }
1982 
1983 
1984 void LIR_OpLock::print_instr(outputStream* out) const {
1985   hdr_opr()->print(out);   out->print(" ");
1986   obj_opr()->print(out);   out->print(" ");
1987   lock_opr()->print(out);  out->print(" ");
1988   if (_scratch->is_valid()) {
1989     _scratch->print(out);  out->print(" ");
1990   }
1991   out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
1992 }
1993 
1994 #ifdef ASSERT
1995 void LIR_OpAssert::print_instr(outputStream* out) const {
1996   print_condition(out, condition()); out->print(" ");
1997   in_opr1()->print(out);             out->print(" ");
1998   in_opr2()->print(out);             out->print(", \"");
1999   out->print("%s", msg());          out->print("\"");
2000 }
2001 #endif
2002 
2003 
2004 void LIR_OpDelay::print_instr(outputStream* out) const {
2005   _op->print_on(out);
2006 }
2007 
2008 
2009 // LIR_OpProfileCall
2010 void LIR_OpProfileCall::print_instr(outputStream* out) const {
2011   profiled_method()->name()->print_symbol_on(out);
2012   out->print(".");
2013   profiled_method()->holder()->name()->print_symbol_on(out);
2014   out->print(" @ %d ", profiled_bci());
2015   mdo()->print(out);           out->print(" ");
2016   recv()->print(out);          out->print(" ");
2017   tmp1()->print(out);          out->print(" ");
2018 }
2019 
2020 // LIR_OpProfileType
2021 void LIR_OpProfileType::print_instr(outputStream* out) const {
2022   out->print("exact = ");
2023   if  (exact_klass() == NULL) {
2024     out->print("unknown");
2025   } else {
2026     exact_klass()->print_name_on(out);
2027   }
2028   out->print(" current = "); ciTypeEntries::print_ciklass(out, current_klass());
2029   out->print(" ");
2030   mdp()->print(out);          out->print(" ");
2031   obj()->print(out);          out->print(" ");
2032   tmp()->print(out);          out->print(" ");
2033 }
2034 
2035 #endif // PRODUCT
2036 
2037 // Implementation of LIR_InsertionBuffer
2038 
2039 void LIR_InsertionBuffer::append(int index, LIR_Op* op) {
2040   assert(_index_and_count.length() % 2 == 0, "must have a count for each index");
2041 
2042   int i = number_of_insertion_points() - 1;
2043   if (i < 0 || index_at(i) < index) {
2044     append_new(index, 1);
2045   } else {
2046     assert(index_at(i) == index, "can append LIR_Ops in ascending order only");
2047     assert(count_at(i) > 0, "check");
2048     set_count_at(i, count_at(i) + 1);
2049   }
2050   _ops.push(op);
2051 
2052   DEBUG_ONLY(verify());
2053 }
2054 
2055 #ifdef ASSERT
2056 void LIR_InsertionBuffer::verify() {
2057   int sum = 0;
2058   int prev_idx = -1;
2059 
2060   for (int i = 0; i < number_of_insertion_points(); i++) {
2061     assert(prev_idx < index_at(i), "index must be ordered ascending");
2062     sum += count_at(i);
2063   }
2064   assert(sum == number_of_ops(), "wrong total sum");
2065 }
2066 #endif